gistfile1.txt

# Run this as:
#
#   NEW_RELIC_CONFIG_FILE=newrelic.ini newrelic-admin run-python example.py
#
# If being run under Heroku, you can skip setting NEW_RELIC_CONFIG_FILE on the
# command line as the required environment variable settings added by the
# Heroku New Relic addon will be picked up automatically.

import time
import newrelic.agent

# This force registers the agent and waits for it to register for period up to
# that specified by timeout. If doesn't register in that time, execution will
# continue anyway. It needs to be force registered when only collecting custom
# metrics as otherwise will not be registered due to registration usually on
# being lazily done on first web transaction or background task.
#
# If this is being done as background thread to web process where agent is
# already running and in use, then you can comment out the line to register the
# agent.

application = newrelic.agent.register_application(timeout=5.0)

count = 0

while True:
    time.sleep(10.0)

    count += 1

    # Use of record_metric() within application object currently is stepping
    # outside of declared public API and may be subject to change in the future.

    application.record_metric('Custom/Counter', count)